Objective: To investigate the cigarette smoking condition of middle school students and college students and analyze related social psychological factors. So as to provide reliable reference for the exploration and establishment of new scientific, effective and Chinese-characteristic model of adolescent smoking prevention and control.

Methods: The requested size of sample were drawn from the students in middle schools and city-level colleges in Hangzhou by stratified sampling. Chi-square test and multinomial Logistic regression analysis were used.

Results: The ever-trying-smoking rate of junior middle school students was 9.7%. That of senior middle school students was 41.0% and that of college students was 43.3%. The male rate was rather higher than the female one (P=0.000).The ever-trying-smoking rate of professional senior middle school students was higher than that of the ordinary ones(P=0.000).The smoking rate of college students was 12.3%. 67.8% of the college students whose age of onset for ever smoking were between 9-20. Age of onset for regular daily smoking were between 17-20 mainly. The four most important smoking motivation of middle school and college students both were: not willing to refuse an offer, to help to forget terrible problems, to feel more energetic, to feel like making own decisions. Tobacco addiction symptoms were not serious in the college smokers. But 71.4% of them did not want to quit smoking. Peer influence, alcohol use, aggression, anxiety, depression are the middle school students' influence factors of smoking. Those of college students were sex, allowance, peer influence, alcohol use, anxiety, depression.